On Thu, Jan 27, 2011 at 12:24:01PM +0000, Hennerich, Michael wrote: > Thomas Chou wrote on 2011-01-27: > > On 01/27/2011 02:18 PM, Mike Frysinger wrote: > >> On Thu, Jan 27, 2011 at 01:10, Thomas Chou wrote: > >>> We need devicetree support on ads7846/7843 touch screen driver. Do > >>> you have plan on it? We are moving to devicetree on nios2, so do > > arm/mips/x86. > >> > >> what part are you using exactly ? > >> -mike > >> > > > > ad7843 is used in a popular nios2 dev kit, NEEK. > > This driver is a SPI bus client driver. PPC is using devicetree for ages now, > and they don't have problems instantiating this or any other SPI bus driver.
However, the method used is by applying a heuristic (of_modalias_node) which tries to name the device in a way that will match an existing device driver. It works for a lot of spi drivers, but it isn't always reliable. Alternatively, if of_match_table is populated in the spi_driver, then the normal device tree match behaviour will always work. g. _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
